VOA慢速英语:Scientists Design Chips to Act Like Human Organs

cardiopulmonary – adj. relating to the heart and lungs.

grant – n.  an amount of money that is given to someone by a government or company to be used for a particular purpose such as scientific research

model – n. an example; something, usually small, made to show how something will look or work

silicon – n. a chemical element that is found in the Earth's crust and is used especially in computers and electronics

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